Merge pull request #27 from ipa-nhg/master

udev rules for hokuyo and LED
Merge pull request #28 from ipa-nhg/master

updates for ubuntu12.04 and groovy
Update groovy_migration_tutorial
update packing manual for new cob garages

update of pictures and text after reworking fixation and packing for
care-o-bot traveling.
Merge pull request #29 from ipa-tif/master

Update of passage: "Packing the Robot"
resized pictures

rezised pictures due to the fact the the manual could not be downloaded
from github as raw anymore.
Merge pull request #30 from ipa-tif/master

resized pictures
Merge pull request #31 from ipa-nhg/master

New env.sh version
Update user.bashrc_groovy
Update cobadduser script